Findings

CVE-2026-32883

Botan is a C++ cryptography library.

Published Mar 30, 2026 · updated Jun 17, 2026 · botan project botan

Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in version 3.11.0.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 30, 2026 · NIST NVD

    Detected

    Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in version 3.11.0.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in version 3.11.0.

Affected

  • cpe botan project/botanversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-32883

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-32883

    Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in ve

    nvd.nist.gov

References

CVE-2026-32883 · ZeroDay Findings